Isaiah is in his 50s and currently does not have a retirement fund. However, he recently read a few articles about the insufficient savings of people in retirement and, as a result, he decides he wants to start now. He saves $500 per month for 15 years and earns 7% by investing in the stock market through an index fund.

Alaska king crab fishing in the 1960s and '70s was a dangerous but rich fishery. boats from as far away as california and japan braved the treacherous gulf of alaska crossing to reach the abundant king crab beds in cook inlet and bristol bay. suddenly, in the early 1980s, the fishery crashed due to over fishing. all crabbing in those areas ended. to this day, there is no crabbing in bristol bay or cook inlet. a. how would an economist explain the decline of the alaska king crab fishery